SAN DIEGO, Calif. (June 21, 2012) – Maxwell Technologies, Inc. (Nasdaq: MXWL) announced today that the editors of R&D Magazine have recognized Maxwell's ultracapacitor-based Engine Start Module (ESM) for medium and heavy duty trucks as one of the 100 most technologically significant products introduced into the marketplace over the past year.

Since 1963, the R&D 100 Awards have identified revolutionary technologies newly introduced to the market. Winners of the R&D 100 Awards are selected by an independent judging panel and the editors of R&D Magazine. The publication and its online portal serve research scientists, engineers, and other technical staff members at high tech industrial companies and public and private laboratories around the world. A full list of this year's winners is available at www.rdmag.com.

Maxwell's ESM incorporates patented ultracapacitor technology to provide the power required to reliably start Class 6 to 8 medium and heavy duty trucks. The ESM form factor is identical to the Battery Council International (BCI) Group 31 batteries used in most Class 6-8 MD/HD trucks in North America, making it an easy-to-install aftermarket product for trucks currently in service.

"Numerous trucking industry sources confirm the need for a more reliable and cost-effective starting solution, said Van Andrews, Maxwell's senior vice president, sales and marketing. "The ESM provides an "onboard jump start" capability that virtually eliminates starting failures due to extreme temperatures or depletion of batteries' cranking power by repetitive starting for deliveries or the use of battery power for heating, air conditioning, entertainment systems and other "hotel loads" in states where engine idling is limited by law."

Unlike Group 31 Lead-acid or Absorbent Glass-Mat (AGM) batteries that store energy by means of a chemical reaction, the ESM stores energy in an electric field within the ultracapacitor cells. This electrostatic energy storage mechanism enables ultracapacitors to charge and discharge in as little as fractions of seconds, perform normally over a broad temperature range (-40°C to +60°C), operate reliably through one million or more charge/discharge cycles and resist shock, vibration and overcharging. Key features and benefits of the ESM include*:

About R&D Magazine
Since its founding in 1959 as Industrial Research, R&D Magazine has served research scientists, engineers and technical staff at laboratories around the world, providing timely, informative news and useful technical articles that broaden readers' knowledge of the research and development industry and improve the quality of their work. R&D Magazine is a publication of Advantage Business Media (www.advantagebusinessmedia.com).

About Maxwell Technologies
Maxwell is a leading developer and manufacturer of innovative, cost-effective energy storage and power delivery solutions. Our ultracapacitor products provide safe and reliable power solutions for applications in consumer and industrial electronics, transportation and telecommunications. Our high-voltage grading and coupling capacitors help to ensure the safety and reliability of electric utility infrastructure and other applications involving transport, distribution and measurement of high-voltage electrical energy. Our radiation-mitigated microelectronic products include power modules, memory modules and single board computers that incorporate powerful commercial silicon for superior performance and high reliability in aerospace applications. For more information, please visit our website: www.maxwell.com.

*Not all applications of the ESM experience similar performance characteristics; see datasheet for further details. Additional terms and conditions shall apply at the time of purchase.

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